(19)
(11) EP 1 253 485 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
30.05.2007 Bulletin 2007/22

(43) Date of publication A2:
30.10.2002 Bulletin 2002/44

(21) Application number: 02252925.9

(22) Date of filing: 25.04.2002
(51) International Patent Classification (IPC): 
G03G 21/18(2006.01)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 27.04.2001 JP 2001131619

(71) Applicant: CANON KABUSHIKI KAISHA
Tokyo (JP)

(72) Inventors:
  • Miyabe, Shigeo
    Ohta-ku, Tokyo (JP)
  • Suzuki, Akira
    Ohta-ku, Tokyo (JP)
  • Abe, Daisuke
    Ohta-ku, Tokyo (JP)
  • Matsuzaki, Hiroomi
    Ohta-ku, Tokyo (JP)
  • Chadani, Kazuo
    Ohta-ku, Tokyo (JP)

(74) Representative: Beresford, Keith Denis Lewis et al
BERESFORD & Co. 16 High Holborn
London WC1V 6BX
London WC1V 6BX (GB)

   


(54) Process cartridge, electrophotographic image forming apparatus and fixing method of electrical contact part


(57) A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes an electrophotographic photosensitive drum; a developing member for developing an electrostatic latent image formed on the electrophotographic photosensitive drum with a developer; charging member for electrically charging the drum; a drum frame supporting the charging member and the drum; a developer accommodation frame having a developer accommodating portion for accommodating the developer; a supporting frame supporting the drum frame and the developer accommodation frame adjacent one longitudinal end of the drum; a developing bias contact, provided on the supporting frame, for receiving a developing bias voltage applied to the developing member from the main assembly of the apparatus when the process cartridge is mounted to the main assembly of the apparatus; and a charging bias contact, provided on the supporting frame, for receiving a charging bias applied to the charging member from the main assembly when the process cartridge is mounted to the main assembly.







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